| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.bluetooth; |
| |
| import android.Manifest; |
| import android.annotation.Nullable; |
| import android.annotation.RequiresPermission; |
| import android.annotation.SdkConstant; |
| import android.annotation.SdkConstant.SdkConstantType; |
| import android.annotation.SystemApi; |
| import android.annotation.UnsupportedAppUsage; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.os.Binder; |
| import android.os.Handler; |
| import android.os.IBinder; |
| import android.os.Looper; |
| import android.os.Message; |
| import android.os.RemoteException; |
| import android.util.Log; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Public API for controlling the Bluetooth Headset Service. This includes both |
| * Bluetooth Headset and Handsfree (v1.5) profiles. |
| * |
| * <p>BluetoothHeadset is a proxy object for controlling the Bluetooth Headset |
| * Service via IPC. |
| * |
| * <p> Use {@link BluetoothAdapter#getProfileProxy} to get |
| * the BluetoothHeadset proxy object. Use |
| * {@link BluetoothAdapter#closeProfileProxy} to close the service connection. |
| * |
| * <p> Android only supports one connected Bluetooth Headset at a time. |
| * Each method is protected with its appropriate permission. |
| */ |
| public final class BluetoothHeadset implements BluetoothProfile { |
| private static final String TAG = "BluetoothHeadset"; |
| private static final boolean DBG = true; |
| private static final boolean VDBG = false; |
| |
| /** |
| * Intent used to broadcast the change in connection state of the Headset |
| * profile. |
| * |
| * <p>This intent will have 3 extras: |
| * <ul> |
| * <li> {@link #EXTRA_STATE} - The current state of the profile. </li> |
| * <li> {@link #EXTRA_PREVIOUS_STATE}- The previous state of the profile. </li> |
| * <li> {@link BluetoothDevice#EXTRA_DEVICE} - The remote device. </li> |
| * </ul> |
| * <p>{@link #EXTRA_STATE} or {@link #EXTRA_PREVIOUS_STATE} can be any of |
| * {@link #STATE_DISCONNECTED}, {@link #STATE_CONNECTING}, |
| * {@link #STATE_CONNECTED}, {@link #STATE_DISCONNECTING}. |
| * |
| * <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission to |
| * receive. |
| */ |
| @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) |
| public static final String ACTION_CONNECTION_STATE_CHANGED = |
| "android.bluetooth.headset.profile.action.CONNECTION_STATE_CHANGED"; |
| |
| /** |
| * Intent used to broadcast the change in the Audio Connection state of the |
| * A2DP profile. |
| * |
| * <p>This intent will have 3 extras: |
| * <ul> |
| * <li> {@link #EXTRA_STATE} - The current state of the profile. </li> |
| * <li> {@link #EXTRA_PREVIOUS_STATE}- The previous state of the profile. </li> |
| * <li> {@link BluetoothDevice#EXTRA_DEVICE} - The remote device. </li> |
| * </ul> |
| * <p>{@link #EXTRA_STATE} or {@link #EXTRA_PREVIOUS_STATE} can be any of |
| * {@link #STATE_AUDIO_CONNECTED}, {@link #STATE_AUDIO_DISCONNECTED}, |
| * |
| * <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission |
| * to receive. |
| */ |
| @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) |
| public static final String ACTION_AUDIO_STATE_CHANGED = |
| "android.bluetooth.headset.profile.action.AUDIO_STATE_CHANGED"; |
| |
| /** |
| * Intent used to broadcast the selection of a connected device as active. |
| * |
| * <p>This intent will have one extra: |
| * <ul> |
| * <li> {@link BluetoothDevice#EXTRA_DEVICE} - The remote device. It can |
| * be null if no device is active. </li> |
| * </ul> |
| * |
| * <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission to |
| * receive. |
| * |
| * @hide |
| */ |
| @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) |
| @UnsupportedAppUsage |
| public static final String ACTION_ACTIVE_DEVICE_CHANGED = |
| "android.bluetooth.headset.profile.action.ACTIVE_DEVICE_CHANGED"; |
| |
| /** |
| * Intent used to broadcast that the headset has posted a |
| * vendor-specific event. |
| * |
| * <p>This intent will have 4 extras and 1 category. |
| * <ul> |
| * <li> {@link BluetoothDevice#EXTRA_DEVICE} - The remote Bluetooth Device |
| * </li> |
| * <li> {@link #EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_CMD} - The vendor |
| * specific command </li> |
| * <li> {@link #EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_CMD_TYPE} - The AT |
| * command type which can be one of {@link #AT_CMD_TYPE_READ}, |
| * {@link #AT_CMD_TYPE_TEST}, or {@link #AT_CMD_TYPE_SET}, |
| * {@link #AT_CMD_TYPE_BASIC},{@link #AT_CMD_TYPE_ACTION}. </li> |
| * <li> {@link #EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_ARGS} - Command |
| * arguments. </li> |
| * </ul> |
| * |
| * <p> The category is the Company ID of the vendor defining the |
| * vendor-specific command. {@link BluetoothAssignedNumbers} |
| * |
| * For example, for Plantronics specific events |
| * Category will be {@link #VENDOR_SPECIFIC_HEADSET_EVENT_COMPANY_ID_CATEGORY}.55 |
| * |
| * <p> For example, an AT+XEVENT=foo,3 will get translated into |
| * <ul> |
| * <li> EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_CMD = +XEVENT </li> |
| * <li> EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_CMD_TYPE = AT_CMD_TYPE_SET </li> |
| * <li> EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_ARGS = foo, 3 </li> |
| * </ul> |
| * <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission |
| * to receive. |
| */ |
| @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) |
| public static final String ACTION_VENDOR_SPECIFIC_HEADSET_EVENT = |
| "android.bluetooth.headset.action.VENDOR_SPECIFIC_HEADSET_EVENT"; |
| |
| /** |
| * A String extra field in {@link #ACTION_VENDOR_SPECIFIC_HEADSET_EVENT} |
| * intents that contains the name of the vendor-specific command. |
| */ |
| public static final String EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_CMD = |
| "android.bluetooth.headset.extra.VENDOR_SPECIFIC_HEADSET_EVENT_CMD"; |
| |
| /** |
| * An int extra field in {@link #ACTION_VENDOR_SPECIFIC_HEADSET_EVENT} |
| * intents that contains the AT command type of the vendor-specific command. |
| */ |
| public static final String EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_CMD_TYPE = |
| "android.bluetooth.headset.extra.VENDOR_SPECIFIC_HEADSET_EVENT_CMD_TYPE"; |
| |
| /** |
| * AT command type READ used with |
| * {@link #EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_CMD_TYPE} |
| * For example, AT+VGM?. There are no arguments for this command type. |
| */ |
| public static final int AT_CMD_TYPE_READ = 0; |
| |
| /** |
| * AT command type TEST used with |
| * {@link #EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_CMD_TYPE} |
| * For example, AT+VGM=?. There are no arguments for this command type. |
| */ |
| public static final int AT_CMD_TYPE_TEST = 1; |
| |
| /** |
| * AT command type SET used with |
| * {@link #EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_CMD_TYPE} |
| * For example, AT+VGM=<args>. |
| */ |
| public static final int AT_CMD_TYPE_SET = 2; |
| |
| /** |
| * AT command type BASIC used with |
| * {@link #EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_CMD_TYPE} |
| * For example, ATD. Single character commands and everything following the |
| * character are arguments. |
| */ |
| public static final int AT_CMD_TYPE_BASIC = 3; |
| |
| /** |
| * AT command type ACTION used with |
| * {@link #EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_CMD_TYPE} |
| * For example, AT+CHUP. There are no arguments for action commands. |
| */ |
| public static final int AT_CMD_TYPE_ACTION = 4; |
| |
| /** |
| * A Parcelable String array extra field in |
| * {@link #ACTION_VENDOR_SPECIFIC_HEADSET_EVENT} intents that contains |
| * the arguments to the vendor-specific command. |
| */ |
| public static final String EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_ARGS = |
| "android.bluetooth.headset.extra.VENDOR_SPECIFIC_HEADSET_EVENT_ARGS"; |
| |
| /** |
| * The intent category to be used with {@link #ACTION_VENDOR_SPECIFIC_HEADSET_EVENT} |
| * for the companyId |
| */ |
| public static final String VENDOR_SPECIFIC_HEADSET_EVENT_COMPANY_ID_CATEGORY = |
| "android.bluetooth.headset.intent.category.companyid"; |
| |
| /** |
| * A vendor-specific command for unsolicited result code. |
| */ |
| public static final String VENDOR_RESULT_CODE_COMMAND_ANDROID = "+ANDROID"; |
| |
| /** |
| * A vendor-specific AT command |
| * |
| * @hide |
| */ |
| public static final String VENDOR_SPECIFIC_HEADSET_EVENT_XAPL = "+XAPL"; |
| |
| /** |
| * A vendor-specific AT command |
| * |
| * @hide |
| */ |
| public static final String VENDOR_SPECIFIC_HEADSET_EVENT_IPHONEACCEV = "+IPHONEACCEV"; |
| |
| /** |
| * Battery level indicator associated with |
| * {@link #VENDOR_SPECIFIC_HEADSET_EVENT_IPHONEACCEV} |
| * |
| * @hide |
| */ |
| public static final int VENDOR_SPECIFIC_HEADSET_EVENT_IPHONEACCEV_BATTERY_LEVEL = 1; |
| |
| /** |
| * A vendor-specific AT command |
| * |
| * @hide |
| */ |
| public static final String VENDOR_SPECIFIC_HEADSET_EVENT_XEVENT = "+XEVENT"; |
| |
| /** |
| * Battery level indicator associated with {@link #VENDOR_SPECIFIC_HEADSET_EVENT_XEVENT} |
| * |
| * @hide |
| */ |
| public static final String VENDOR_SPECIFIC_HEADSET_EVENT_XEVENT_BATTERY_LEVEL = "BATTERY"; |
| |
| /** |
| * Headset state when SCO audio is not connected. |
| * This state can be one of |
| * {@link #EXTRA_STATE} or {@link #EXTRA_PREVIOUS_STATE} of |
| * {@link #ACTION_AUDIO_STATE_CHANGED} intent. |
| */ |
| public static final int STATE_AUDIO_DISCONNECTED = 10; |
| |
| /** |
| * Headset state when SCO audio is connecting. |
| * This state can be one of |
| * {@link #EXTRA_STATE} or {@link #EXTRA_PREVIOUS_STATE} of |
| * {@link #ACTION_AUDIO_STATE_CHANGED} intent. |
| */ |
| public static final int STATE_AUDIO_CONNECTING = 11; |
| |
| /** |
| * Headset state when SCO audio is connected. |
| * This state can be one of |
| * {@link #EXTRA_STATE} or {@link #EXTRA_PREVIOUS_STATE} of |
| * {@link #ACTION_AUDIO_STATE_CHANGED} intent. |
| */ |
| |
| /** |
| * Intent used to broadcast the headset's indicator status |
| * |
| * <p>This intent will have 3 extras: |
| * <ul> |
| * <li> {@link #EXTRA_HF_INDICATORS_IND_ID} - The Assigned number of headset Indicator which |
| * is supported by the headset ( as indicated by AT+BIND command in the SLC |
| * sequence) or whose value is changed (indicated by AT+BIEV command) </li> |
| * <li> {@link #EXTRA_HF_INDICATORS_IND_VALUE} - Updated value of headset indicator. </li> |
| * <li> {@link BluetoothDevice#EXTRA_DEVICE} - Remote device. </li> |
| * </ul> |
| * <p>{@link #EXTRA_HF_INDICATORS_IND_ID} is defined by Bluetooth SIG and each of the indicators |
| * are given an assigned number. Below shows the assigned number of Indicator added so far |
| * - Enhanced Safety - 1, Valid Values: 0 - Disabled, 1 - Enabled |
| * - Battery Level - 2, Valid Values: 0~100 - Remaining level of Battery |
| * <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission to receive. |
| * |
| * @hide |
| */ |
| public static final String ACTION_HF_INDICATORS_VALUE_CHANGED = |
| "android.bluetooth.headset.action.HF_INDICATORS_VALUE_CHANGED"; |
| |
| /** |
| * A int extra field in {@link #ACTION_HF_INDICATORS_VALUE_CHANGED} |
| * intents that contains the assigned number of the headset indicator as defined by |
| * Bluetooth SIG that is being sent. Value range is 0-65535 as defined in HFP 1.7 |
| * |
| * @hide |
| */ |
| public static final String EXTRA_HF_INDICATORS_IND_ID = |
| "android.bluetooth.headset.extra.HF_INDICATORS_IND_ID"; |
| |
| /** |
| * A int extra field in {@link #ACTION_HF_INDICATORS_VALUE_CHANGED} |
| * intents that contains the value of the Headset indicator that is being sent. |
| * |
| * @hide |
| */ |
| public static final String EXTRA_HF_INDICATORS_IND_VALUE = |
| "android.bluetooth.headset.extra.HF_INDICATORS_IND_VALUE"; |
| |
| public static final int STATE_AUDIO_CONNECTED = 12; |
| |
| private static final int MESSAGE_HEADSET_SERVICE_CONNECTED = 100; |
| private static final int MESSAGE_HEADSET_SERVICE_DISCONNECTED = 101; |
| |
| private Context mContext; |
| private ServiceListener mServiceListener; |
| private volatile IBluetoothHeadset mService; |
| private BluetoothAdapter mAdapter; |
| |
| private final IBluetoothStateChangeCallback mBluetoothStateChangeCallback = |
| new IBluetoothStateChangeCallback.Stub() { |
| public void onBluetoothStateChange(boolean up) { |
| if (DBG) Log.d(TAG, "onBluetoothStateChange: up=" + up); |
| if (!up) { |
| doUnbind(); |
| } else { |
| doBind(); |
| } |
| } |
| }; |
| |
| /** |
| * Create a BluetoothHeadset proxy object. |
| */ |
| /*package*/ BluetoothHeadset(Context context, ServiceListener l) { |
| mContext = context; |
| mServiceListener = l; |
| mAdapter = BluetoothAdapter.getDefaultAdapter(); |
| |
| IBluetoothManager mgr = mAdapter.getBluetoothManager(); |
| if (mgr != null) { |
| try { |
| mgr.registerStateChangeCallback(mBluetoothStateChangeCallback); |
| } catch (RemoteException e) { |
| Log.e(TAG, "", e); |
| } |
| } |
| |
| doBind(); |
| } |
| |
| private boolean doBind() { |
| synchronized (mConnection) { |
| if (mService == null) { |
| if (VDBG) Log.d(TAG, "Binding service..."); |
| try { |
| return mAdapter.getBluetoothManager().bindBluetoothProfileService( |
| BluetoothProfile.HEADSET, mConnection); |
| } catch (RemoteException e) { |
| Log.e(TAG, "Unable to bind HeadsetService", e); |
| } |
| } |
| } |
| return false; |
| } |
| |
| private void doUnbind() { |
| synchronized (mConnection) { |
| if (mService != null) { |
| if (VDBG) Log.d(TAG, "Unbinding service..."); |
| try { |
| mAdapter.getBluetoothManager().unbindBluetoothProfileService( |
| BluetoothProfile.HEADSET, mConnection); |
| } catch (RemoteException e) { |
| Log.e(TAG, "Unable to unbind HeadsetService", e); |
| } finally { |
| mService = null; |
| } |
| } |
| } |
| } |
| |
| /** |
| * Close the connection to the backing service. |
| * Other public functions of BluetoothHeadset will return default error |
| * results once close() has been called. Multiple invocations of close() |
| * are ok. |
| */ |
| @UnsupportedAppUsage |
| /*package*/ void close() { |
| if (VDBG) log("close()"); |
| |
| IBluetoothManager mgr = mAdapter.getBluetoothManager(); |
| if (mgr != null) { |
| try { |
| mgr.unregisterStateChangeCallback(mBluetoothStateChangeCallback); |
| } catch (RemoteException re) { |
| Log.e(TAG, "", re); |
| } |
| } |
| mServiceListener = null; |
| doUnbind(); |
| } |
| |
| /** |
| * Initiate connection to a profile of the remote bluetooth device. |
| * |
| * <p> Currently, the system supports only 1 connection to the |
| * headset/handsfree profile. The API will automatically disconnect connected |
| * devices before connecting. |
| * |
| * <p> This API returns false in scenarios like the profile on the |
| * device is already connected or Bluetooth is not turned on. |
| * When this API returns true, it is guaranteed that |
| * connection state intent for the profile will be broadcasted with |
| * the state. Users can get the connection state of the profile |
| * from this intent. |
| * |
| * <p>Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN} |
| * permission. |
| * |
| * @param device Remote Bluetooth Device |
| * @return false on immediate error, true otherwise |
| * @hide |
| */ |
| @SystemApi |
| @RequiresPermission(android.Manifest.permission.BLUETOOTH_ADMIN) |
| public boolean connect(BluetoothDevice device) { |
| if (DBG) log("connect(" + device + ")"); |
| final IBluetoothHeadset service = mService; |
| if (service != null && isEnabled() && isValidDevice(device)) { |
| try { |
| return service.connect(device); |
| } catch (RemoteException e) { |
| Log.e(TAG, Log.getStackTraceString(new Throwable())); |
| return false; |
| } |
| } |
| if (service == null) Log.w(TAG, "Proxy not attached to service"); |
| return false; |
| } |
| |
| /** |
| * Initiate disconnection from a profile |
| * |
| * <p> This API will return false in scenarios like the profile on the |
| * Bluetooth device is not in connected state etc. When this API returns, |
| * true, it is guaranteed that the connection state change |
| * intent will be broadcasted with the state. Users can get the |
| * disconnection state of the profile from this intent. |
| * |
| * <p> If the disconnection is initiated by a remote device, the state |
| * will transition from {@link #STATE_CONNECTED} to |
| * {@link #STATE_DISCONNECTED}. If the disconnect is initiated by the |
| * host (local) device the state will transition from |
| * {@link #STATE_CONNECTED} to state {@link #STATE_DISCONNECTING} to |
| * state {@link #STATE_DISCONNECTED}. The transition to |
| * {@link #STATE_DISCONNECTING} can be used to distinguish between the |
| * two scenarios. |
| * |
| * <p>Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN} |
| * permission. |
| * |
| * @param device Remote Bluetooth Device |
| * @return false on immediate error, true otherwise |
| * @hide |
| */ |
| @SystemApi |
| @RequiresPermission(android.Manifest.permission.BLUETOOTH_ADMIN) |
| public boolean disconnect(BluetoothDevice device) { |
| if (DBG) log("disconnect(" + device + ")"); |
| final IBluetoothHeadset service = mService; |
| if (service != null && isEnabled() && isValidDevice(device)) { |
| try { |
| return service.disconnect(device); |
| } catch (RemoteException e) { |
| Log.e(TAG, Log.getStackTraceString(new Throwable())); |
| return false; |
| } |
| } |
| if (service == null) Log.w(TAG, "Proxy not attached to service"); |
| return false; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public List<BluetoothDevice> getConnectedDevices() { |
| if (VDBG) log("getConnectedDevices()"); |
| final IBluetoothHeadset service = mService; |
| if (service != null && isEnabled()) { |
| try { |
| return service.getConnectedDevices(); |
| } catch (RemoteException e) { |
| Log.e(TAG, Log.getStackTraceString(new Throwable())); |
| return new ArrayList<BluetoothDevice>(); |
| } |
| } |
| if (service == null) Log.w(TAG, "Proxy not attached to service"); |
| return new ArrayList<BluetoothDevice>(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public List<BluetoothDevice> getDevicesMatchingConnectionStates(int[] states) { |
| if (VDBG) log("getDevicesMatchingStates()"); |
| final IBluetoothHeadset service = mService; |
| if (service != null && isEnabled()) { |
| try { |
| return service.getDevicesMatchingConnectionStates(states); |
| } catch (RemoteException e) { |
| Log.e(TAG, Log.getStackTraceString(new Throwable())); |
| return new ArrayList<BluetoothDevice>(); |
| } |
| } |
| if (service == null) Log.w(TAG, "Proxy not attached to service"); |
| return new ArrayList<BluetoothDevice>(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public int getConnectionState(BluetoothDevice device) { |
| if (VDBG) log("getConnectionState(" + device + ")"); |
| final IBluetoothHeadset service = mService; |
| if (service != null && isEnabled() && isValidDevice(device)) { |
| try { |
| return service.getConnectionState(device); |
| } catch (RemoteException e) { |
| Log.e(TAG, Log.getStackTraceString(new Throwable())); |
| return BluetoothProfile.STATE_DISCONNECTED; |
| } |
| } |
| if (service == null) Log.w(TAG, "Proxy not attached to service"); |
| return BluetoothProfile.STATE_DISCONNECTED; |
| } |
| |
| /** |
| * Set priority of the profile |
| * |
| * <p> The device should already be paired. |
| * Priority can be one of {@link BluetoothProfile#PRIORITY_ON} or |
| * {@link BluetoothProfile#PRIORITY_OFF}, |
| * |
| * <p>Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN} |
| * permission. |
| * |
| * @param device Paired bluetooth device |
| * @param priority |
| * @return true if priority is set, false on error |
| * @hide |
| */ |
| @SystemApi |
| @RequiresPermission(android.Manifest.permission.BLUETOOTH_ADMIN) |
| public boolean setPriority(BluetoothDevice device, int priority) { |
| if (DBG) log("setPriority(" + device + ", " + priority + ")"); |
| final IBluetoothHeadset service = mService; |
| if (service != null && isEnabled() && isValidDevice(device)) { |
| if (priority != BluetoothProfile.PRIORITY_OFF |
| && priority != BluetoothProfile.PRIORITY_ON) { |
| return false; |
| } |
| try { |
| return service.setPriority(device, priority); |
| } catch (RemoteException e) { |
| Log.e(TAG, Log.getStackTraceString(new Throwable())); |
| return false; |
| } |
| } |
| if (service == null) Log.w(TAG, "Proxy not attached to service"); |
| return false; |
| } |
| |
| /** |
| * Get the priority of the profile. |
| * |
| * <p> The priority can be any of: |
| * {@link #PRIORITY_AUTO_CONNECT}, {@link #PRIORITY_OFF}, |
| * {@link #PRIORITY_ON}, {@link #PRIORITY_UNDEFINED} |
| * |
| * <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission. |
| * |
| * @param device Bluetooth device |
| * @return priority of the device |
| * @hide |
| */ |
| @UnsupportedAppUsage |
| public int getPriority(BluetoothDevice device) { |
| if (VDBG) log("getPriority(" + device + ")"); |
| final IBluetoothHeadset service = mService; |
| if (service != null && isEnabled() && isValidDevice(device)) { |
| try { |
| return service.getPriority(device); |
| } catch (RemoteException e) { |
| Log.e(TAG, Log.getStackTraceString(new Throwable())); |
| return PRIORITY_OFF; |
| } |
| } |
| if (service == null) Log.w(TAG, "Proxy not attached to service"); |
| return PRIORITY_OFF; |
| } |
| |
| /** |
| * Start Bluetooth voice recognition. This methods sends the voice |
| * recognition AT command to the headset and establishes the |
| * audio connection. |
| * |
| * <p> Users can listen to {@link #ACTION_AUDIO_STATE_CHANGED}. |
| * If this function returns true, this intent will be broadcasted with |
| * {@link #EXTRA_STATE} set to {@link #STATE_AUDIO_CONNECTING}. |
| * |
| * <p> {@link #EXTRA_STATE} will transition from |
| * {@link #STATE_AUDIO_CONNECTING} to {@link #STATE_AUDIO_CONNECTED} when |
| * audio connection is established and to {@link #STATE_AUDIO_DISCONNECTED} |
| * in case of failure to establish the audio connection. |
| * |
| * <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission. |
| * |
| * @param device Bluetooth headset |
| * @return false if there is no headset connected, or the connected headset doesn't support |
| * voice recognition, or voice recognition is already started, or audio channel is occupied, |
| * or on error, true otherwise |
| */ |
| public boolean startVoiceRecognition(BluetoothDevice device) { |
| if (DBG) log("startVoiceRecognition()"); |
| final IBluetoothHeadset service = mService; |
| if (service != null && isEnabled() && isValidDevice(device)) { |
| try { |
| return service.startVoiceRecognition(device); |
| } catch (RemoteException e) { |
| Log.e(TAG, Log.getStackTraceString(new Throwable())); |
| } |
| } |
| if (service == null) Log.w(TAG, "Proxy not attached to service"); |
| return false; |
| } |
| |
| /** |
| * Stop Bluetooth Voice Recognition mode, and shut down the |
| * Bluetooth audio path. |
| * |
| * <p> Users can listen to {@link #ACTION_AUDIO_STATE_CHANGED}. |
| * If this function returns true, this intent will be broadcasted with |
| * {@link #EXTRA_STATE} set to {@link #STATE_AUDIO_DISCONNECTED}. |
| * |
| * <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission. |
| * |
| * @param device Bluetooth headset |
| * @return false if there is no headset connected, or voice recognition has not started, |
| * or voice recognition has ended on this headset, or on error, true otherwise |
| */ |
| public boolean stopVoiceRecognition(BluetoothDevice device) { |
| if (DBG) log("stopVoiceRecognition()"); |
| final IBluetoothHeadset service = mService; |
| if (service != null && isEnabled() && isValidDevice(device)) { |
| try { |
| return service.stopVoiceRecognition(device); |
| } catch (RemoteException e) { |
| Log.e(TAG, Log.getStackTraceString(new Throwable())); |
| } |
| } |
| if (service == null) Log.w(TAG, "Proxy not attached to service"); |
| return false; |
| } |
| |
| /** |
| * Check if Bluetooth SCO audio is connected. |
| * |
| * <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission. |
| * |
| * @param device Bluetooth headset |
| * @return true if SCO is connected, false otherwise or on error |
| */ |
| public boolean isAudioConnected(BluetoothDevice device) { |
| if (VDBG) log("isAudioConnected()"); |
| final IBluetoothHeadset service = mService; |
| if (service != null && isEnabled() && isValidDevice(device)) { |
| try { |
| return service.isAudioConnected(device); |
| } catch (RemoteException e) { |
| Log.e(TAG, Log.getStackTraceString(new Throwable())); |
| } |
| } |
| if (service == null) Log.w(TAG, "Proxy not attached to service"); |
| return false; |
| } |
| |
| /** |
| * Indicates if current platform supports voice dialing over bluetooth SCO. |
| * |
| * @return true if voice dialing over bluetooth is supported, false otherwise. |
| * @hide |
| */ |
| public static boolean isBluetoothVoiceDialingEnabled(Context context) { |
| return context.getResources().getBoolean( |
| com.android.internal.R.bool.config_bluetooth_sco_off_call); |
| } |
| |
| /** |
| * Get the current audio state of the Headset. |
| * Note: This is an internal function and shouldn't be exposed |
| * |
| * @hide |
| */ |
| @UnsupportedAppUsage |
| public int getAudioState(BluetoothDevice device) { |
| if (VDBG) log("getAudioState"); |
| final IBluetoothHeadset service = mService; |
| if (service != null && !isDisabled()) { |
| try { |
| return service.getAudioState(device); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString()); |
| } |
| } else { |
| Log.w(TAG, "Proxy not attached to service"); |
| if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable())); |
| } |
| return BluetoothHeadset.STATE_AUDIO_DISCONNECTED; |
| } |
| |
| /** |
| * Sets whether audio routing is allowed. When set to {@code false}, the AG will not route any |
| * audio to the HF unless explicitly told to. |
| * This method should be used in cases where the SCO channel is shared between multiple profiles |
| * and must be delegated by a source knowledgeable |
| * Note: This is an internal function and shouldn't be exposed |
| * |
| * @param allowed {@code true} if the profile can reroute audio, {@code false} otherwise. |
| * @hide |
| */ |
| public void setAudioRouteAllowed(boolean allowed) { |
| if (VDBG) log("setAudioRouteAllowed"); |
| final IBluetoothHeadset service = mService; |
| if (service != null && isEnabled()) { |
| try { |
| service.setAudioRouteAllowed(allowed); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString()); |
| } |
| } else { |
| Log.w(TAG, "Proxy not attached to service"); |
| if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable())); |
| } |
| } |
| |
| /** |
| * Returns whether audio routing is allowed. see {@link #setAudioRouteAllowed(boolean)}. |
| * Note: This is an internal function and shouldn't be exposed |
| * |
| * @hide |
| */ |
| public boolean getAudioRouteAllowed() { |
| if (VDBG) log("getAudioRouteAllowed"); |
| final IBluetoothHeadset service = mService; |
| if (service != null && isEnabled()) { |
| try { |
| return service.getAudioRouteAllowed(); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString()); |
| } |
| } else { |
| Log.w(TAG, "Proxy not attached to service"); |
| if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable())); |
| } |
| return false; |
| } |
| |
| /** |
| * Force SCO audio to be opened regardless any other restrictions |
| * |
| * @param forced Whether or not SCO audio connection should be forced: True to force SCO audio |
| * False to use SCO audio in normal manner |
| * @hide |
| */ |
| public void setForceScoAudio(boolean forced) { |
| if (VDBG) log("setForceScoAudio " + String.valueOf(forced)); |
| final IBluetoothHeadset service = mService; |
| if (service != null && isEnabled()) { |
| try { |
| service.setForceScoAudio(forced); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString()); |
| } |
| } else { |
| Log.w(TAG, "Proxy not attached to service"); |
| if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable())); |
| } |
| } |
| |
| /** |
| * Check if at least one headset's SCO audio is connected or connecting |
| * |
| * <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission. |
| * |
| * @return true if at least one device's SCO audio is connected or connecting, false otherwise |
| * or on error |
| * @hide |
| */ |
| public boolean isAudioOn() { |
| if (VDBG) log("isAudioOn()"); |
| final IBluetoothHeadset service = mService; |
| if (service != null && isEnabled()) { |
| try { |
| return service.isAudioOn(); |
| } catch (RemoteException e) { |
| Log.e(TAG, Log.getStackTraceString(new Throwable())); |
| } |
| } |
| if (service == null) Log.w(TAG, "Proxy not attached to service"); |
| return false; |
| |
| } |
| |
| /** |
| * Initiates a connection of headset audio to the current active device |
| * |
| * <p> Users can listen to {@link #ACTION_AUDIO_STATE_CHANGED}. |
| * If this function returns true, this intent will be broadcasted with |
| * {@link #EXTRA_STATE} set to {@link #STATE_AUDIO_CONNECTING}. |
| * |
| * <p> {@link #EXTRA_STATE} will transition from |
| * {@link #STATE_AUDIO_CONNECTING} to {@link #STATE_AUDIO_CONNECTED} when |
| * audio connection is established and to {@link #STATE_AUDIO_DISCONNECTED} |
| * in case of failure to establish the audio connection. |
| * |
| * Note that this intent will not be sent if {@link BluetoothHeadset#isAudioOn()} is true |
| * before calling this method |
| * |
| * @return false if there was some error such as there is no active headset |
| * @hide |
| */ |
| @UnsupportedAppUsage |
| public boolean connectAudio() { |
| final IBluetoothHeadset service = mService; |
| if (service != null && isEnabled()) { |
| try { |
| return service.connectAudio(); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString()); |
| } |
| } else { |
| Log.w(TAG, "Proxy not attached to service"); |
| if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable())); |
| } |
| return false; |
| } |
| |
| /** |
| * Initiates a disconnection of HFP SCO audio. |
| * Tear down voice recognition or virtual voice call if any. |
| * |
| * <p> Users can listen to {@link #ACTION_AUDIO_STATE_CHANGED}. |
| * If this function returns true, this intent will be broadcasted with |
| * {@link #EXTRA_STATE} set to {@link #STATE_AUDIO_DISCONNECTED}. |
| * |
| * @return false if audio is not connected, or on error, true otherwise |
| * @hide |
| */ |
| @UnsupportedAppUsage |
| public boolean disconnectAudio() { |
| final IBluetoothHeadset service = mService; |
| if (service != null && isEnabled()) { |
| try { |
| return service.disconnectAudio(); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString()); |
| } |
| } else { |
| Log.w(TAG, "Proxy not attached to service"); |
| if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable())); |
| } |
| return false; |
| } |
| |
| /** |
| * Initiates a SCO channel connection as a virtual voice call to the current active device |
| * Active handsfree device will be notified of incoming call and connected call. |
| * |
| * <p> Users can listen to {@link #ACTION_AUDIO_STATE_CHANGED}. |
| * If this function returns true, this intent will be broadcasted with |
| * {@link #EXTRA_STATE} set to {@link #STATE_AUDIO_CONNECTING}. |
| * |
| * <p> {@link #EXTRA_STATE} will transition from |
| * {@link #STATE_AUDIO_CONNECTING} to {@link #STATE_AUDIO_CONNECTED} when |
| * audio connection is established and to {@link #STATE_AUDIO_DISCONNECTED} |
| * in case of failure to establish the audio connection. |
| * |
| * @return true if successful, false if one of the following case applies |
| * - SCO audio is not idle (connecting or connected) |
| * - virtual call has already started |
| * - there is no active device |
| * - a Telecom managed call is going on |
| * - binder is dead or Bluetooth is disabled or other error |
| * @hide |
| */ |
| @RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN) |
| @UnsupportedAppUsage |
| public boolean startScoUsingVirtualVoiceCall() { |
| if (DBG) log("startScoUsingVirtualVoiceCall()"); |
| final IBluetoothHeadset service = mService; |
| if (service != null && isEnabled()) { |
| try { |
| return service.startScoUsingVirtualVoiceCall(); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString()); |
| } |
| } else { |
| Log.w(TAG, "Proxy not attached to service"); |
| if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable())); |
| } |
| return false; |
| } |
| |
| /** |
| * Terminates an ongoing SCO connection and the associated virtual call. |
| * |
| * <p> Users can listen to {@link #ACTION_AUDIO_STATE_CHANGED}. |
| * If this function returns true, this intent will be broadcasted with |
| * {@link #EXTRA_STATE} set to {@link #STATE_AUDIO_DISCONNECTED}. |
| * |
| * @return true if successful, false if one of the following case applies |
| * - virtual voice call is not started or has ended |
| * - binder is dead or Bluetooth is disabled or other error |
| * @hide |
| */ |
| @RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN) |
| @UnsupportedAppUsage |
| public boolean stopScoUsingVirtualVoiceCall() { |
| if (DBG) log("stopScoUsingVirtualVoiceCall()"); |
| final IBluetoothHeadset service = mService; |
| if (service != null && isEnabled()) { |
| try { |
| return service.stopScoUsingVirtualVoiceCall(); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString()); |
| } |
| } else { |
| Log.w(TAG, "Proxy not attached to service"); |
| if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable())); |
| } |
| return false; |
| } |
| |
| /** |
| * Notify Headset of phone state change. |
| * This is a backdoor for phone app to call BluetoothHeadset since |
| * there is currently not a good way to get precise call state change outside |
| * of phone app. |
| * |
| * @hide |
| */ |
| @UnsupportedAppUsage |
| public void phoneStateChanged(int numActive, int numHeld, int callState, String number, |
| int type, String name) { |
| final IBluetoothHeadset service = mService; |
| if (service != null && isEnabled()) { |
| try { |
| service.phoneStateChanged(numActive, numHeld, callState, number, type, name); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString()); |
| } |
| } else { |
| Log.w(TAG, "Proxy not attached to service"); |
| if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable())); |
| } |
| } |
| |
| /** |
| * Send Headset of CLCC response |
| * |
| * @hide |
| */ |
| public void clccResponse(int index, int direction, int status, int mode, boolean mpty, |
| String number, int type) { |
| final IBluetoothHeadset service = mService; |
| if (service != null && isEnabled()) { |
| try { |
| service.clccResponse(index, direction, status, mode, mpty, number, type); |
| } catch (RemoteException e) { |
| Log.e(TAG, e.toString()); |
| } |
| } else { |
| Log.w(TAG, "Proxy not attached to service"); |
| if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable())); |
| } |
| } |
| |
| /** |
| * Sends a vendor-specific unsolicited result code to the headset. |
| * |
| * <p>The actual string to be sent is <code>command + ": " + arg</code>. For example, if {@code |
| * command} is {@link #VENDOR_RESULT_CODE_COMMAND_ANDROID} and {@code arg} is {@code "0"}, the |
| * string <code>"+ANDROID: 0"</code> will be sent. |
| * |
| * <p>Currently only {@link #VENDOR_RESULT_CODE_COMMAND_ANDROID} is allowed as {@code command}. |
| * |
| * <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission. |
| * |
| * @param device Bluetooth headset. |
| * @param command A vendor-specific command. |
| * @param arg The argument that will be attached to the command. |
| * @return {@code false} if there is no headset connected, or if the command is not an allowed |
| * vendor-specific unsolicited result code, or on error. {@code true} otherwise. |
| * @throws IllegalArgumentException if {@code command} is {@code null}. |
| */ |
| public boolean sendVendorSpecificResultCode(BluetoothDevice device, String command, |
| String arg) { |
| if (DBG) { |
| log("sendVendorSpecificResultCode()"); |
| } |
| if (command == null) { |
| throw new IllegalArgumentException("command is null"); |
| } |
| final IBluetoothHeadset service = mService; |
| if (service != null && isEnabled() && isValidDevice(device)) { |
| try { |
| return service.sendVendorSpecificResultCode(device, command, arg); |
| } catch (RemoteException e) { |
| Log.e(TAG, Log.getStackTraceString(new Throwable())); |
| } |
| } |
| if (service == null) { |
| Log.w(TAG, "Proxy not attached to service"); |
| } |
| return false; |
| } |
| |
| /** |
| * Select a connected device as active. |
| * |
| * The active device selection is per profile. An active device's |
| * purpose is profile-specific. For example, in HFP and HSP profiles, |
| * it is the device used for phone call audio. If a remote device is not |
| * connected, it cannot be selected as active. |
| * |
| * <p> This API returns false in scenarios like the profile on the |
| * device is not connected or Bluetooth is not turned on. |
| * When this API returns true, it is guaranteed that the |
| * {@link #ACTION_ACTIVE_DEVICE_CHANGED} intent will be broadcasted |
| * with the active device. |
| * |
| * <p>Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN} |
| * permission. |
| * |
| * @param device Remote Bluetooth Device, could be null if phone call audio should not be |
| * streamed to a headset |
| * @return false on immediate error, true otherwise |
| * @hide |
| */ |
| @RequiresPermission(android.Manifest.permission.BLUETOOTH_ADMIN) |
| @UnsupportedAppUsage |
| public boolean setActiveDevice(@Nullable BluetoothDevice device) { |
| if (DBG) { |
| Log.d(TAG, "setActiveDevice: " + device); |
| } |
| final IBluetoothHeadset service = mService; |
| if (service != null && isEnabled() && (device == null || isValidDevice(device))) { |
| try { |
| return service.setActiveDevice(device); |
| } catch (RemoteException e) { |
| Log.e(TAG, Log.getStackTraceString(new Throwable())); |
| } |
| } |
| if (service == null) { |
| Log.w(TAG, "Proxy not attached to service"); |
| } |
| return false; |
| } |
| |
| /** |
| * Get the connected device that is active. |
| * |
| * <p>Requires {@link android.Manifest.permission#BLUETOOTH} |
| * permission. |
| * |
| * @return the connected device that is active or null if no device |
| * is active. |
| * @hide |
| */ |
| @RequiresPermission(android.Manifest.permission.BLUETOOTH) |
| @UnsupportedAppUsage |
| public BluetoothDevice getActiveDevice() { |
| if (VDBG) { |
| Log.d(TAG, "getActiveDevice"); |
| } |
| final IBluetoothHeadset service = mService; |
| if (service != null && isEnabled()) { |
| try { |
| return service.getActiveDevice(); |
| } catch (RemoteException e) { |
| Log.e(TAG, Log.getStackTraceString(new Throwable())); |
| } |
| } |
| if (service == null) { |
| Log.w(TAG, "Proxy not attached to service"); |
| } |
| return null; |
| } |
| |
| /** |
| * Check if in-band ringing is currently enabled. In-band ringing could be disabled during an |
| * active connection. |
| * |
| * @return true if in-band ringing is enabled, false if in-band ringing is disabled |
| * @hide |
| */ |
| @RequiresPermission(android.Manifest.permission.BLUETOOTH) |
| public boolean isInbandRingingEnabled() { |
| if (DBG) { |
| log("isInbandRingingEnabled()"); |
| } |
| final IBluetoothHeadset service = mService; |
| if (service != null && isEnabled()) { |
| try { |
| return service.isInbandRingingEnabled(); |
| } catch (RemoteException e) { |
| Log.e(TAG, Log.getStackTraceString(new Throwable())); |
| } |
| } |
| if (service == null) { |
| Log.w(TAG, "Proxy not attached to service"); |
| } |
| return false; |
| } |
| |
| /** |
| * Check if in-band ringing is supported for this platform. |
| * |
| * @return true if in-band ringing is supported, false if in-band ringing is not supported |
| * @hide |
| */ |
| public static boolean isInbandRingingSupported(Context context) { |
| return context.getResources().getBoolean( |
| com.android.internal.R.bool.config_bluetooth_hfp_inband_ringing_support); |
| } |
| |
| private final IBluetoothProfileServiceConnection mConnection = |
| new IBluetoothProfileServiceConnection.Stub() { |
| @Override |
| public void onServiceConnected(ComponentName className, IBinder service) { |
| if (DBG) Log.d(TAG, "Proxy object connected"); |
| mService = IBluetoothHeadset.Stub.asInterface(Binder.allowBlocking(service)); |
| mHandler.sendMessage(mHandler.obtainMessage( |
| MESSAGE_HEADSET_SERVICE_CONNECTED)); |
| } |
| |
| @Override |
| public void onServiceDisconnected(ComponentName className) { |
| if (DBG) Log.d(TAG, "Proxy object disconnected"); |
| doUnbind(); |
| mHandler.sendMessage(mHandler.obtainMessage( |
| MESSAGE_HEADSET_SERVICE_DISCONNECTED)); |
| } |
| }; |
| |
| @UnsupportedAppUsage |
| private boolean isEnabled() { |
| return mAdapter.getState() == BluetoothAdapter.STATE_ON; |
| } |
| |
| private boolean isDisabled() { |
| return mAdapter.getState() == BluetoothAdapter.STATE_OFF; |
| } |
| |
| private static boolean isValidDevice(BluetoothDevice device) { |
| return device != null && BluetoothAdapter.checkBluetoothAddress(device.getAddress()); |
| } |
| |
| private static void log(String msg) { |
| Log.d(TAG, msg); |
| } |
| |
| private final Handler mHandler = new Handler(Looper.getMainLooper()) { |
| @Override |
| public void handleMessage(Message msg) { |
| switch (msg.what) { |
| case MESSAGE_HEADSET_SERVICE_CONNECTED: { |
| if (mServiceListener != null) { |
| mServiceListener.onServiceConnected(BluetoothProfile.HEADSET, |
| BluetoothHeadset.this); |
| } |
| break; |
| } |
| case MESSAGE_HEADSET_SERVICE_DISCONNECTED: { |
| if (mServiceListener != null) { |
| mServiceListener.onServiceDisconnected(BluetoothProfile.HEADSET); |
| } |
| break; |
| } |
| } |
| } |
| }; |
| } |
